Login  | 
Servo Brake Fluid - DOT 4

Servo Brake Fluid - DOT 4 is designed specifically to perform in today's extreme temperature braking systems. Formula of Servo Brake Fluid meets or exceeds dot 4 specifications.Servo BF3 is a specially blended fluid which confirms with the following standards :

FMVSS NO.116 DOT3, SAE J1703 and JIS K2233 BF-3


For all ABS, disc and drum brake systems as well as hydraulic clutches requiring DOT 4 fluids.
Performance Features and Benefits
1-Servo Brake Fluid uses in all hydraulic drums, disc brakes and hydraulic clutches that    require dot 4 fluids.
2-Servo Brake Fluid mixes with regular brake fluids.
3-Servo Brake Fluid provides an excellent flow at low temperatures for superior braking  response.
4-Servo Brake Fluid meets American Federal Motor Vehicle Safety Standard 116.
Specifications & Properties  

Kinematic Viscosity at -40°C  cst:

1800 Max

ASTM D 445

Kinematic Viscosity at 100°C  cst :

1.5 Min

ASTM D 445

ERBP(Equilibrium Reflux Boiling Point) °C :

230 Min

ASTM D 1120 

Wet Equilibrium Reflux Boiling point °C:

155 Min

ASTM D 1120 
 PH Value:  7.0 - 11.5 ASTM D 664 
 Fluid Chemical Stability °C: ± 5  ASTM D 1120 
 Fluid High Temperature stability (ERBP change)  ± 5  SAE J 1704
 Corrosion:   SAE J 1704 
 1-Dry Fluid    
a) Metal strip weigh change 100 °C for 120 hrs     
Tinned iron 6A  mg/cm²  0.2 Max  
Steel 7  mg/cm²  0.2 Max  
Aluminium 8 mg/cm²   0.1 Max  
Cast Iron 9 mg/cm²   0.2 Max  
Brass 10 mg/cm²   0.4 Max  
Copper 11 mg/cm²   0.4 Max  
 b) Metal strip outside the area of contact: Neither pitted nor roughened  
c) Condition of Fluid after test 23  °C none    
 Jelling none   
Crystalline type deposit  none  
sediment % by volume   max: 0.1   
d) Condition of Rubber specimen after test  no disintegration    
2- Brake Fluid with water    
a) Metal strip weigh change 100 °C  for 120 hrs     
Tinned iron 6A mg/cm²    0.2 Max   
Steel 7 mg/cm²   0.2 Max  
Aluminium 8 mg/cm²   0.1 Max  
Cast Iron 9 mg/cm²   0.2 Max  
Brass 10 mg/cm²   0.4 Max  
Copper 11 mg/cm²   0.4 Max  

These characteristics are typical of current production. While future production will confirm to Servo's specifications, variations in these characteristics may occur.


Click to enlarge


Health & Safety

Extended exposure to skin could be hazardous. Wash hands after coming in contact. Keep away from eyes.
Protect the Environment
Take used brake fluid to an authorized collection point. Do not dispose off into drains, soil or water


Copyright © 2011 - 2018 Chicago Group. All Rights Reserved. Terms Of Use  |  Privacy Statement